What can cause an offspring to have a physical trait neither of its parents has?

a mutation in a parent’s body cell

a mutation in a parent’s sex cell

the natural selection of a trait

the artificial selection of a trait

The body is protected against harmful flu viruses by

The shift of a vehicle's weight around its center of gravity is known as

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.